linux/Documentation/filesystems/befs.txt
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   1BeOS filesystem for Linux
   2
   3Document last updated: Dec 6, 2001
   4
   5WARNING
   6=======
   7Make sure you understand that this is alpha software.  This means that the
   8implementation is neither complete nor well-tested. 
   9
  10I DISCLAIM ALL RESPONSIBILITY FOR ANY POSSIBLE BAD EFFECTS OF THIS CODE!
  11
  12LICENSE
  13=====
  14This software is covered by the GNU General Public License. 
  15See the file COPYING for the complete text of the license.
  16Or the GNU website: <http://www.gnu.org/licenses/licenses.html>
  17
  18AUTHOR
  19=====
  20The largest part of the code written by Will Dyson <will_dyson@pobox.com>
  21He has been working on the code since Aug 13, 2001. See the changelog for
  22details.
  23
  24Original Author: Makoto Kato <m_kato@ga2.so-net.ne.jp>
  25His original code can still be found at:
  26<http://hp.vector.co.jp/authors/VA008030/bfs/>
  27Does anyone know of a more current email address for Makoto? He doesn't
  28respond to the address given above...
  29
  30This filesystem doesn't have a maintainer.
  31
  32WHAT IS THIS DRIVER?
  33==================
  34This module implements the native filesystem of BeOS http://www.beincorporated.com/ 
  35for the linux 2.4.1 and later kernels. Currently it is a read-only
  36implementation.
  37
  38Which is it, BFS or BEFS?
  39================
  40Be, Inc said, "BeOS Filesystem is officially called BFS, not BeFS". 
  41But Unixware Boot Filesystem is called bfs, too. And they are already in
  42the kernel. Because of this naming conflict, on Linux the BeOS
  43filesystem is called befs.
  44
  45HOW TO INSTALL
  46==============
  47step 1.  Install the BeFS  patch into the source code tree of linux.
  48
  49Apply the patchfile to your kernel source tree.
  50Assuming that your kernel source is in /foo/bar/linux and the patchfile
  51is called patch-befs-xxx, you would do the following:
  52
  53        cd /foo/bar/linux
  54        patch -p1 < /path/to/patch-befs-xxx
  55
  56if the patching step fails (i.e. there are rejected hunks), you can try to
  57figure it out yourself (it shouldn't be hard), or mail the maintainer 
  58(Will Dyson <will_dyson@pobox.com>) for help.
  59
  60step 2.  Configuration & make kernel
  61
  62The linux kernel has many compile-time options. Most of them are beyond the
  63scope of this document. I suggest the Kernel-HOWTO document as a good general
  64reference on this topic. http://www.linuxdocs.org/HOWTOs/Kernel-HOWTO-4.html 
  65
  66However, to use the BeFS module, you must enable it at configure time.
  67
  68        cd /foo/bar/linux
  69        make menuconfig (or xconfig)
  70
  71The BeFS module is not a standard part of the linux kernel, so you must first
  72enable support for experimental code under the "Code maturity level" menu.
  73
  74Then, under the "Filesystems" menu will be an option called "BeFS
  75filesystem (experimental)", or something like that. Enable that option
  76(it is fine to make it a module).
  77
  78Save your kernel configuration and then build your kernel.
  79
  80step 3.  Install
  81
  82See the kernel howto <http://www.linux.com/howto/Kernel-HOWTO.html> for
  83instructions on this critical step.
  84
  85USING BFS
  86=========
  87To use the BeOS filesystem, use filesystem type 'befs'.
  88
  89ex)
  90    mount -t befs /dev/fd0 /beos
  91
  92MOUNT OPTIONS
  93=============
  94uid=nnn        All files in the partition will be owned by user id nnn.
  95gid=nnn        All files in the partition will be in group nnn.
  96iocharset=xxx  Use xxx as the name of the NLS translation table.
  97debug          The driver will output debugging information to the syslog.
  98
  99HOW TO GET LASTEST VERSION
 100==========================
 101
 102The latest version is currently available at:
 103<http://befs-driver.sourceforge.net/>
 104
 105ANY KNOWN BUGS?
 106===========
 107As of Jan 20, 2002:
 108        
 109        None
 110
 111SPECIAL THANKS
 112==============
 113Dominic Giampalo ... Writing "Practical file system design with Be filesystem"
 114Hiroyuki Yamada  ... Testing LinuxPPC.
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